Nozzle for pneumatic carpet-cleaning apparatus.



110.856.909. l A PATEN'rBD 1111.23.1907.

" R.F.n1sBRENs'.

NOZZL POR PNEUMATIG CARPET CLEANING APPARATUS.

nrmoumrrnnn 1m15.190s.

lUNITED STAT-Rs LPATENT OFFICE.

RALPH F. DIsERENs, oF BRADFORD, PENN'sYLvANIA;

NozzLE FOR PNEUMATIQ oAhRETfeLEA'mG APPARATUS.

Nofseaeoe.

Specication of Letters Patent.

Patented April 23, 190'?.

Application nea .my 5,1906. .serial No. 324,733.

.To fri/' 'Lr/Imm t moby/concern,.-

Be 1tl known. that I, RALPH F. DIsERENs, a

citizen of the United States, residing at Bradford, in the county of McKean and State of .Pennsylvania, have invented certain new the dust-collecting nozzles adapted to be brought into contactwith the object to be cleaned, and its novelty consists' in the construction -and adaptation ofthe parts, as will hemore fully hereinafter pointed out. Y In the drawings, Figure 1 is a top plan view of a nozzle embodying my invention. Fig'. 2 is aside view thereof. Fig. 3 is a central longitudinal section, and Fig. 4 is a bottom plan view.

In the draw-ings, is a pipe connected at 11 by a coupling to any suitable hose 12,

which in turn leads to a vacuum-producing means, as a fan or pump. (Not shown.) V

is a nozzle comprising a throat 21, made up'of the side walls 22 22 and the end walls 23 23 and restricted laterally to form a neck 24, which is threaded at 25 to engage with the threaded end ofthe suction-pipe 10. The neck is bent at 26 to make the device lore convenient for the operator to handle and move over the carpet or other surface to be treated. Transversely arranged betweenl the walls 22 22 and 23 23 1s a diaphragm 30, perforated at 3131 to permit'of the passage of the air and dust through the same to the throat 2,1`I Beyond this diaphragm is a Inonth'40, formed ofthe jaws 41 41', andl Within said mouth is an' intermediate tongue 42, whichl extendl beyond Athe plane of the edge of the mou*J from the diaphragm 30,

' which forms the rear wall of saidmouth.

In the constructionl shown the jaws 41 are made integral with the side walls 22 22 and form a continuation thereof, and the tongue 42. is made integral with the 'diaphragm 30 and is placedsubstantial'ly at right angles thereto. f

The mouth 40 is divided into two compartments 43 and 44 by the intermediate tongue 42, and this tongue 42 serves the double func'n tion of a scraper againstthe surface of theI `carpet or other object to be cleaned and a support'which will always keep the edge of one ofthe jaws 41 out of contact withsuch surface. i

The manner of using the .devlce 1s as foli lows: `The vacuum-producing means being .set 1n operation, the-workman places the nozzle agalnst thefcarpet in about, the manner shown in Figs. 2 and 3, the tongue 42 and one of the jaws V41 resting th'ereon. The nozzle being thendrawn over the carpet, (designated by the numeral 50,) the dust disturbed thereby is rapidly drawn first into the compartments 43 and 44 and thence through the apertures 31 31 into the 4throat 21, whence it is drawn into the pipe'lO and beyondto the `iinal place of collection and removal.

l have found this I,device very eflicient in practice. The tongue 42 seems to open the pile or nap of the fa ric and dist-urb the dust mand under the carpet and to facilitate its removal, and the division thereby of the mouth into two relatively narrow com art- Aments 43 and 4 subjects each part o the carpet to the action of the two currents of air first throughone compartment and then the other, and as these two compartments are completely separated from each other and have their mouths located in different-planes each art ofthe fabric will by reason of this doub e action be @factually Cleaned, while the removal of the'throat an appreciable distance away from the carpet seems to more effectually take away the dust from its surface. What I claim as new is- V 1. A nozzle for a pneumatic carpet-cleaner, having within its interior an apertured dlaphragm arranged rearward of its mouth, andV piovlded with a tongue which divides the nozzle into a pluralityof compartments and extends from said diaphragm to a plane outside saidmouth.".

2. A nozzle for a pneumatic carpet-cleaner, having within its interior an apertured dlaphragm, jaws extending forward of said diahragm and forming a mouthin front of the liitter', and a tongue which dlvides the mouth into a plurality of; compartments and ex- IOO tends from said .diaphragm to n. plane outl letter, and a tongue extending across said 1o side said mouth, said .parts relatively armouth and forward ofthe jaws. ranged "so that the edges of the jaws of one In testimony whereof I ex my signature compartment'will be in a dlerentplane than i in presence of two witnesses. those of the other. l

3. A nozzle for apneumato carpet-cleaner, RALPH F' DISERENS having within its interior an apertured da- Witnesses: phregm, jaws extending forward of said dia- A. R. JOHNSON, phragm and forming a mouth in front of the D. H. JACK. 

